Yamaha F50A - Checking the Carburetor

FUEL
Fuel system
4-19
62Y3A11
Checking the carburetor
1. Check the air and fuel passages and jets,
for dirt and foreign matter. Clean the car-
buretor body with a petroleum based sol-
vent if necessary.
2. Blow compressed air into all passages
and jets.
CAUTION:
• Direct the compressed air downward,
otherwise cleaning solvent may be
blown into your eyes or small parts of
the carburetor may be blown off.
• Do not use steel wire for cleaning the
jets, otherwise the jet diameters may be
enlarged, which may seriously affect
performance.
3. Check the main jet
1
, pilot jet
2
, and
main nozzle
3
for dirt or residue. Clean if
necessary.
4. Check the pilot screw and needle valve
for bends or wear. Replace if necessary.
S62Y4230
3
2
1